Fireless cooker.



W. E, GOILE-IRVING` FIR-BLESS CGOKER, APPL-NATION HLBD MAR. 30A 19-14,

Patented Feb. 16, 1915.

3 SHEETS-SHBET l1 n uff/14.1201

W. E. GOYLE-IRVING.

FIRELBSS GOOKER. APPLIGATIQN FILED 111.43.30, 1914.

Patented Feb. 16, 1915.

3 SHEETS-SHEET 3.

jy. r/ l vj W W w of the food container.` This closure may be made ofany suitable material, preferably asbestos and is substantiallywedge-shape in cross section as illustrated rin Figs. l, '.4 and 5, saidclosure operating in conjunction with a pair of iianged guides 22secured to the bottom of the food container to crowd said -closur ltightly against the bottom ot` the container when said closure is slidacross said intake oriiice by'tlie means to be described. I'

A plunger rod 23 is attached at one end to the closure 2l at the point24 and extends outwardly through an opening 25 in the casing and througha vtubular casing 26 where it is provided with a collar 27 fast thereon,beyond which is an expansion spring 28 which is coiled around theplunger rod 23- and exerts an inward pressure thereon to slide theclosure 21 to its closing position. The iod 23 is previded at its outerend with an operating 'knob 29 to facilitate drawing said plungeroutward and moving the closure 2l to an open position. The plunger rod23 is provided with a catch, lip or shoulder 30 at 'a suitable point in`the length thereofI` said shoulder being adapted to be engaged by asliding bolt or spring catch 3l which as shown in Fig. l passes througha tu bular guide 32 in which is arranged a coiled spring 33 which actsto drawA the bolt or catcn 3l out of engagement with the shoulder 30 topermit the spriiig 2S to act for the purpose of thrusting the closure 2lacross the intake orifice of the food container. The spring catch orbolt 31 is held in engagement with the shoulder` 30` by v means o1' atrip finger 34 on a rock shaft 3o,

\end wherein projects above'the top wall ot the linger 3l engaging vandlying behind another finger 36 on the bolt or spring catch 3l:is-clearly shown in Fig. l. When the shaft 35 is rocked bythe meanshereinafter described, the finger 36 is released thus allowing'thespring catch or bolt 3l to move out oi engagement with the shoulder 30and release the spring actuated closure 2l. Thethe casing 1. At itslower end the rod 4A) is pivotally connected to an arm 42 of the rockshaft 35. Intermediate its ends the red 40 isprovlided with. a shoulder43 which .v

is engaged by a `spring pressed bolt 44 hav-A ing the rear end thereofbent as shown at 45 to lie in the path ot a stud or projection 46 on therevolving dial 47 of timing or clock mechanism designated generally at Aand supported by the casing l. The timing mechanism A may be set atanypoint de.

sired so that after a certain predetermined lapse of time the stud orprojeetion'fi' will operate to withdraw the bolt 44 from engagementwithv the shoulder 43 of the trip rod 40, allowing the'weighted arms 39to move downwardly and oscillate the rock shaft 35. In this movement ofthe rock shaft,` the spring catch 31 is retracted so as to disengage theshoulder 30 and allow the closure 2l to be movedto its closed positionthereby sealing the intake opening in the bottom of, the container. Therock shaft 35 is provided with a valve operating arm 4S carrying at itsend a pin 49 which is received in-the slotted extensionl 50 of the stemor arm 5l of the stop cock 2O.,k Therefore as the shaft 35 is' turnedbythe weighted'arms 39, the' 'stop cock 20 is closed, thus cuttingoit/:the supply to the heater 18 simultaneously with the shutting of theclosure2l. A longer operating arm 53 fast on vthe rock shaft 35 hasconnected `to the extremity thereof a vertically extending-ventstopper"` operating rod 54 which extends through the top of the casing land also through an opening 55 in a stopper operating lever 56 which isfulcrumed intermediate its ends at 5T on a post 58 extending upwardlytofward the cover Soi` the food container, the

vent stopper 11 being connected te the inner arm of the lever :36 asshown in Figs. l, 2 and 5 so that 1n the'movements of the lever 5G the'stopper 1l is moved to close and open the vent 10. y

59 designates a compensating spring which isinterposed between the lever56 and a fixed collar (i0 on the operating rod 54 so as to admit 'of`any necessary movement of the rod .M azlfttertlie stopper l1 has beenmoved tofit'selosed position. Above the ylever v56 the voperating rod isprovided with a lever operating collar (il ad.- justablethereon by meansof a set screw 62 so that when therod 54 moves downwardly the stopper 11is moved .away from the vent 10 so as to open the latter.

The means for operatinff the rod 54 to open the vent l0 preferablyconsists of a weight G3 mounted slidingly on the rod '5i and providedwith a setting arm 6l which projects through a slot 65 Yin the casing asshown in Fig. 1 where it is upheld b v a spring retracted holt or catch6G operating at a predetermined time by timing or clock `mechanismdesignated generallv at B and `best illustrated in Fig. 4 wherein itwill be seen 'thatthe mechanism B like the mechanism A comprises arevolving dia-l G7 carrying a stud or projection GS adapted to eniio ias

gage a shoulder 69 en the boite@ io drew eine same from vunder illeWeight se-zing these operations @pei i e is pushed upwardly and Yeni:il? is eiesed b the sto oer 1L ine i. ue l and the food container sealedai mined time which is regulaied of the timing mechanism to thiscombined operation, released at a predetermined en eration of he timingineolianie Weight moves downwardly on i ing gradually erresed oir springZG une-il it acts agen 7l on said rod, whereupon i ried downwardly untilen thevlever 56 eo more lie sto from' the vent if". This allor. e

cooking.

Under the errangenen Figs.- 5 5.7 the Weigntec referred to for operatingil f siie are dispensed with and 'die r ,opper eperating rod 54 is solocated with respect'l to the plnnger rod. 723 lia; ii: acts to hold theplunger redoute-vi above ru y.

i For this uroose the olnnGer rod 23 is l L t: w

vided with a stop shoulder 72 J4mereon I and having an L-shaped fingerwhich in the inward movement ohe 'ein rod 23', cornes 1n Contact wrdn anarr i e stem 75 of he stop eoelr 76 which Controls the supply go, thelieaier'l' 'thereby enting; off the supply tothe heater. The lowerendofiihe operating rod 54 is provided Wiii a trip finger 'Z7 whichengages he ind lie coil'ar 72 tohold Jhe plunger rod 23 ouwardly againstthe Vaction of the closure slinting spring 28. lVhen, however, the rod5i is thrust upwardly bv the fiction of coiied expansion `spring 78, thefinger I7 is moved outJ of engagement with ehe ooiiar 72 ro re-V leasethe plunger rod 23 and the slideble closure 2l for the purposehereinabove described. The spring 'T8 'is injzeroosed oetn'een a fixedCollar 79 on the rod o4 und e lguide 8O fastened to the easing Lf .V nerod 54 also passes hrongh another g Ae Si on the inside of the easing land also 'enough e. guide openingr S2 in the top well said casclosingthe Veni; 10 in the eo'fer Ff.

83 designates e 'Ceiar :East on. the rod 54: Wliieli comes in Contactwith elle lever 56 to nieve the sopper 11 to its eiosed posiion.

Inder the arrangement snoWn'in Fig. 5, the ieer 5G? is ex'tended at 84to receive a fieni- .lile eonneoion 85 which extends downwardly'ehrou'gh en opening' SG'in die top the easing and has eonneeed 'to itsrip red 8? Whieii slides verei- -i guides SS on the in rod Si' is normed expansion spring S9* posed. between slionifler S end; of -:iid rodand one o' .shown in Fig. The rod 8 Wi'n e, shenlder .91 which is e u1never @3 in turn arno oi the iming meenemen" gei'ierefiYT et Ff endhaving 4he purpose as e tiininel mechanism indienied et E in theforegoing descripion reletmg; to F'rfs. f ineinsive. i

The rod 54 is lilier se v 1th a shonider 94 *einen is engaged and ino* fs re eased and pnsned -npwerdij ey the. spring; rel-eases *alle plungerrod 223 und el Ws the slidahle closure 2l o nove inwardly io its closiij' osition. Sirnul eneousiy iherewitli the finger '73 operaes to closeie` step oook 7G ont ed the supply to die nearer. Qininianeously withboth of these opera Jziens, *the lever is operated to more lie stopperil into position io close vne vent 3 Snhseouentiy liereio and :iii-ier ulapse of irne governed by the oi' the eiming mechanism B', the rod Si isreleased andeellowed to more downwardly iherehv la on the flexible`eonneoion 85 and moi'ing `the lever 56 so es to shift the stoif per ilaway from the vent 1G thus opening` 'the rentand stopping the CookingeinemA .and at predetermined time governed .hy

'die setting of the secondary inning mechari-ism, the vent in he top ofthe container will hev reopened hereupon terminating the Cookingoperation vand preventing overt-ookine'. A door 9? in one of theverzieai weils of easing l provides access to ne in terior of saidcasing for the purpose of lighting the burner which may be used as theheater hereinabove described and for setting vany part oi the mechanismde,` scribed. l

Under the arrangement shown in Fig. 1, the rod 40 is drawn upwardlytothe 4position shown therein and the plunger rod 2? is then drawnoutwardly until the spring catch 3l is moved into engagement therewithand held by the trip finger 3i. This movement of the rock shaift Siialso opens the vent 10 and the stop cool; 20. The burner 1S is thenlighted and the doot` DT closed. rI'he timing mechanism A. is then setto trip the. mechanism after a certain p'rcdeterniined time and thetiming mechanism ll is ralso set to operate at a siihsequent time tostop the cooking operation by opening the ,tout at the top of thecontainer. f

Under the'.arrangement shown in Fig. 5, the plunger rod 2,3 is drawnoutwardly an'd tlie rodit moved downwardly until it engages and holdssaid plunger rod 'The trip rodf l. is then drawn upwardly until it iseugaged the trip lever 93. The stop cock 7G is then opened and theburner 1S lighted. After a predeterminedv time the rod 5l. is releasedand in moving upwardly it releases the plunger rod 23 and the closureand also operates on the lever 5G tol close the rent opening l0.therewith the stop vcock 7f3 is closed thus cutting oflI the supply -tothe heater. Subsequentlj)1 thereto the other timing mechanism operatesat a predetermined time to autoniaticallht` releasiA the trip rod 91which tliei'ebv ell'ects an opening of the vent l0 through the mediumofthe lexible connection and the lever 56.

'liat I claim iscl. In a tireless cooker, a food container having a heatreceiving orilice, means :for delivering heat through said oritice intosaid container, and a, ciosiire slidable across said. orilice andoperable automatically to close said orifice at a predetermined time.

L). ln a tireless cooker, a food container having a heat receivingorifice, means "for supplyinglicat to said container through saidorifice, a closure -slidablc across said orifice, and means operatingautomatically Simultaneously to move said closure to closing position ata predetermined time.

having a heat receiving orice, means for supplying heat to saidcontainer through f .55. 8. In a tireless cooker, a food container saidorifice, and meansvfor automatically closing said orifice at apredetermined time,`

fixed in relation to said container, a Supply pipe for said heater, andmeans for automatically closing said orifice and closing said supplypipe at a predetermined time.

6. In a .fireless'cooker, a foodv container Ahavinga heat receivingorifice and a rent,

means for supplying heatto said container` throiigh said orifice, meansoperating to 'automatically close said orifice and vent at apredetermined time. and means operating thereafter to open said vent ata predetermined time.

7. n a tireless cooker, a food container havingr a vent therein, meansfor automatically closing said vent at a predetermined time, and .meansoperating thereafter to reopen said vent at a predetermined time.

S. In a tireless cooker, a food 'container havinga heat receiving'orificeaiid arent,- means for automatically closing said orifice andvent. at 'apredetermined time, and means operatii Yen-t at alnedcterminedtime.

9. In a Atireless cooker, a food container having a vent therein, aheater. means for antoinatcallv closing said vent and vshuttine,- ofi'the heater at aprenetermined time, and means operating thereafter said-vent at a predetermined time.

In testimony whereof l aflix my signaturc in presence oi two witnesses.i f

WILLIAM EDVUN CYLEJRVING- Witnesses Mrs. L. B. IRVING, i

Mrs. L. HAHN.

'ig thereafter to reopen said to reopen

